Technical Diver Level 3  
 
 
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Technical Diver Level 3

Purpose

The Technical Level 3 (Tech 3) course is the culmination of a series of three courses designed to establish technical diving excellence and facilitate deep, mixed gas diving.  Emphasis is placed on aggressive diving profiles including advanced decompression theory, advanced gas mixture/management, control over extreme exposures to Oxygen and proficiency in the use of a DPV for propulsion at depth.  This course is heavily experience-based and deals mostly with the practical implications of deep diving; divers are expected to be capable technical divers.

Prerequisites

    1.      Must meet GUE General Course Prerequisites :

General Prerequisites for All GUE Courses

The following are prerequisites for all GUE Courses (any additional and/or course specific course prerequisite, as well as any deviations from the following, will be listed under the appropriate section of the specific course):

    -      Must  submit a completed registration form, medical history, and liability release to GUE Headquarters.

    -      Must be physically and mentally fit.

    -      Must hold DAN Master level insurance or equivalent.

    -      Must be a nonsmoker.

    -      Must obtain a physician's prior written authorization for the  use of prescription drugs, except for birth control, or for a prior  medical condition that may pose a risk while diving.  A partial list of such conditions may  be found on GUE's medical history form; if a student answers in the  affirmative to any of these, they must obtain a physician's approval to  dive and disclose this to their GUE instructor before the onset of  training.  Physician approval for a  specific condition is valid for one year from the date it is given assuming  there are no further changes to the student's medical conditions.

    -      Must be CPR/First Aid trained (except for DIR Fundamentals).

    2.      Must be a minimum of 21 years of age
    3.      Must beGUE Tech 2  qualified and GUE Cave Level 1 trained
    4.       Must have a minimum of 300 logged dives with at least  200 dives in double cylinders and at least 50 dives beyond Tech 2  training
    5.       Must  be able to swim a distance of at least 60 feet/18 meters on a breath hold
    6.      Must  be able to swim at least 400 yards/365 meters in less than 12 minutes without stopping. This test should be conducted in a swimsuit and, where necessary, appropriate thermal protection.

Duration

The GUE Tech 3 class is normally conducted over a 7-day period and involves a minimum of forty (40) hours of instruction.  Training consists of at least ten (10) dives of which six (6) are critical skills/drills and four (4) are experience dives as defined by GUE standards.

Course Limits

    1.       General Training Limits as outlined in Section 1.4
    2.      Student to instructor ratio is not to exceed 3:1 during in-water training or land drills

Course Content

The GUE Tech 3 course is normally conducted over a 7-day period, and cumulatively involves a minimum of forty (40) hours of class-oriented instruction (lecture and in-water) designed to instill divers with an advanced understanding of mixed gas diving.  Special emphasis here will be placed on extended exposures and their associated considerations (dive planning, gas management, DCS, Oxygen toxicity, DPV propulsion, and thermal concerns).

Course requirements include a minimum of six (6) critical skill dives (3 days) with training in scooter diving, multiple stage/deco bottles, navigation, advanced gas management and advanced decompression strategy, and four (4) Trimix experience dives (4 days) with practical implementation of critical skills during deeper/longer diving.

Required Training Materials

    1.      Doing it Right: The Fundamentals of Better Diving.  Jarrod Jablonski, GUE, 2001, High Springs, Florida.
    2.      Getting Clear on the Basics: The Fundamentals of Technical Diving.  Jarrod Jablonski, GUE, 2001, High Springs, Florida.
    3.      Beyond  the Daylight Zone: The Fundamentals of Cave Diving.  Jarrod Jablonski, Panos Alexakos and  Todd Kincaid, GUE, 2001, High Springs, Florida.
    4.      The  Physiology and Medicine of Diving. Peter Bennett and David Elliott, W. B. Saunders Company Ltd, London.

Academic Topics

    1.       GUE organization
    2.      Limits of training and course completion requirements
    3.      Conservation
    4.      Logistical planning, project support, and operational planning
    5.      Advanced diving techniques including scooter diving, use of multiple stage/deco bottles, navigation, advanced gas management, and advanced decompression strategy

Land Drills & Topics

    1.      Spool,  reel, and guideline use
    2.      Dive  team order and protocols
    3.      Scootering  protocols
    4.      Touch  contact
    5.      Advanced  navigation skills

Required Dive Skills & Drills

    1.       All skills and drills as outlined in General Diving Skills:

General Diving Skills

With the exception of DIR Fundamentals, GUE courses must all ensure proficiency in the following diving skills; a final grade of three (3) (satisfactory) or better is required to demonstrate the requisite skill in each.  Any other and/or course specific skills, as well as any deviation from a particular diving skill, will be listed under the appropriate section for the specific course.  DIR Fundamentals has a more restricted skill set, one outlined in section 2.1.2.9.

    -      Demonstrate  proficiency in safe diving practices; this would include pre-dive preparation, in-water activity, and post-dive assessment.

    -      Demonstrate  awareness of team member location and a concern for safety, responding  quickly to visual cues and dive partner requirements.

    -      Efficiently  and comfortably demonstrate how to donate gas to an out-of-gas diver in  multiple gas-sharing episodes, with one or more of these to include a distance of at least 30 feet/9 meters.

    -      Demonstrate  a comfortable demeanor while swimming for at least 100 feet/30 meters,  without a mask, while gas-sharing.

    -      Be  able to comfortably demonstrate at least two propulsion techniques that would be appropriate in delicate and/or silty environments.

    -      Demonstrate  knowledge of dive rescue techniques, including effective management of the  following situations: assisting a convulsing diver and an unconscious  diver.

    -      Demonstrate  a safe and responsible demeanor throughout all training.

All GUE instructors are encouraged to exceed minimum training standards when by doing so they are promoting the best interests of the student. Instructors are actively encouraged to deny qualification to students when students have not met the standards of the certification level they are pursuing to the satisfaction of the instructor.

    2.      Assess and review diving limitations.
    3.      Skillfully demonstrate gas failure procedures; including valve manipulation, gas-sharing, and regulator switching (as appropriate).
    4.      Demonstrate the ability to deploy a lift bag/surface marker buoy in less than two minutes while hovering stationary.  Participants should not vary in depth more than 5 feet/1.5 meters.
    5.      Be able to skillfully demonstrate at least two propulsion techniques that would be appropriate in delicate and/or silty environments.
    6.      Demonstrate good touch contact skills for limited and simulated zero visibility situations.
    7.      Demonstrate excellent reel and guideline use.
    8.      Demonstrate proficiency in gas-sharing while managing multiple stages.
    9.      Demonstrate safe and efficient operation of a DPV.
    10.      Demonstrate  proficiency in gas-sharing while piloting a DPV.
    11.      Demonstrate  the ability to run/retrieve a guideline while scootering.
    12.      Demonstrate  the ability to tow a diver whose diver propulsion vehicle has failed.
    13.      Demonstrate  proficiency in managing scooter times (power management protocols).
    14.      Demonstrate  the effective deployment of a reserve light in less than 30 seconds.
    15.      Demonstrate  excellent buoyancy control skills.
    16.      Demonstrate a clean and efficient removal of multiple  stage and/or decompression bottles while hovering horizontal.
    17.       Demonstrate  facility with advanced decompression procedures by: 1) demonstrating the  ability to explain trends in decompression tables, and 2) by explaining a  strategy for managing decompression in the event of a lost decompression  gas.
    18.      Demonstrate  the knowledge to safely carry out all decompression obligations assuming  the loss of all back gas.
    19.      Demonstrate  capacity with navigation, including compass operation and natural  navigation techniques.

Equipment Requirements

Each student should have, and be familiar with, all of the following required equipment.

    1.       Tanks/Cylinders: Students are required to use dual tanks/cylinders connected with a dual outlet isolator manifold, which allows for the use of two first-stages. All dives must start with a minimum of 80 cubic feet/2250 liters of gas.  Divers must also maintain the use of at least four appropriately marked stage bottles.  Stage bottles should include: one Oxygen cylinder, one cylinder for use at 70 feet/21 meters, one cylinder for use at 120 feet/36 meters, and one cylinder for use at 190 feet/57 meters.
    2.      Regulators: Two first-stages, each supplying a single second-stage. One of the second-stages must be on a 7-foot/2-meter hose. One of the first-stages must supply a pressure gauge and provide inflation for a dry suit where applicable. Four first-stage regulators, one for each stage/decompression cylinder; each one is to supply a single second-stage and a single pressure gauge.
    3.      Backplate  System:  A rigid and flat platform,  of metal construction with minimal padding, held to a diver by one  continuous piece of nylon webbing. This webbing should be adjustable  through the plate and should use a buckle to secure the system at the  waist. A crotch strap attached to the lower end of this platform and  looped through the waistband would prevent the system from riding up a  diver's back. A knife should be secured to the waist on the left webbing  tab. This webbing should support five D-rings; the first should be placed  at the left hip, the second should be placed in line with a diver's right  collarbone, the third should be placed in line with the diver's left collarbone, the fourth and fifth should be affixed to the crotch strap to  use while scootering or towing/stowing gear.  The harness below the diver's arms should have small  restrictive bands to allow for the placement of reserve light powered by  three in-line c-cell batteries (where necessary). The system should retain  a minimalist approach with no unnecessary components.
    4.      Buoyancy Compensation Device: A  diver's buoyancy compensation device should be back-mounted and minimalist  in nature. It should come free of extraneous strings, tabs, or other  material. There should be no restrictive bands or "bungee" of any sort  affixed to the buoyancy cell.   In addition, diver lift should not  exceed 80lbs. Wing size and shape should be appropriate to the cylinder  size(s) employed for training.   
    5.       Approved DPV
    6.      At least one depth-measuring device
    7.      One timekeeping device
    8.      Survey compass and slate
    9.      Decompression tables
    10.      Mask and fins: Mask should be low volume; fins should be rigid, non-split
    11.      At least one cutting device
    12.      Wet Notes
    13.      One reel/spool with 100 feet/30 meters of line per diver
    14.      One primary reel per team, with a minimum of 300 feet/90 meters of line
    15.      One primary light:  A primary light should be minimalist in design; its  power source should consist of a rechargeable battery pack residing in a  canister powering an external light head via a light cord.  Primary lights should produce the  equivalent output of 50 watt halogen/10 watt HID lighting or greater.
    16.      Two reserve lights: Reserve  lights should be non-rechargeable in-line three c-cell battery lights with  a minimum of protrusions and a single attachment at its rear. The light  should be activated by twisting the front bezel towards the body,  deactivated by turning it away from the body.
    17.      Exposure suit appropriate for the duration of exposure
    18.      At least one surface marker buoy per diver

Note: Prior to the commencement of class, students should consult with a GUE representative to verify equipment requirements. Whether or not a piece of equipment fulfills GUE's equipment requirement remains at the discretion of GUE and its instructor representatives.  Participants are responsible for providing all equipment or for making provisions to secure all necessary equipment before the start of the course. In general, it is better for the student to learn while using his or her own equipment.  However, students should exercise caution before purchasing new equipment to avoid acquiring substandard equipment. Please contact a GUE representative prior to making any purchases. Information about recommended equipment can be obtained from the equipment considerations section of GUE's web site.




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